Improvement in elbows for sheet-metal pipes



C. F. HENIS. ELBOW'S on SHEET-METAL PIPES.

No.173,169. Y Patented Feb. 8, 1876 IN. PETERS, PHOTO-LITHOGRAPNER, WASHINGTON D C FFIcE.

CHARLES F. HENIS, OF PHILADELPHIA, PENNSYLVANIA.

IMPROVEMENT IN ELBOWS,FOR SHEET META L PIPES.

Specification forming part of Letters Patent No. 173,169, dated February 8,1876; application filed January 8, 1876.

To all whom it may concern:

Be it known that I, CHAS. F. HENIS, of Philadelphia State of Pennsylvania, have invented an Elbow for Sheet-Metal Pipes, of which the following is a specification Myinvention consists in constructing a pipeelbow in sections upon the radius of the circle in which the elbow is curved, and in making the sections alternately solid and open, the open sections being so constructed as to clamp together the solid ones, which are held firmly in any desired position by adjustable clasps.

In the drawing, Figure 1 is a side elevation of the elbow. Fig. 2 is a view of a solid section. Fig. 3 is a view of an open section, showing the adjustable clasp. v

These sections may be made in such numbers as may be desired.

When the sections are put together and the open sections loosely clasped, the parts are free to move upon each other, and by a proper ened, the parts can always be separated, and

can. be again reunited in any desired position. No claim is made for the clasp shown, as numerous'devices can be used in its stead.

What I claim as my invention is The combination'of the solid sections a and the open sections b, provided with clasps or their equivalent, constructed and operatedsubstautially as shown and described.

. CHAS. F. HENIS.

Witnesses:

JAS. H. RICHARDS, CHAS. F. PIKE. 

